8 + 6.50 = 14.50
22.00
- 14.50
-----------
7.50
answer : liu's meal was $7.50
Answer:
<u>-58</u>
Step-by-step explanation:
-32+(-4+7)(2)
-32 + 3(2)
-29 x 2
<u>-58</u>
Answer: 0.0775
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Sample size : 
Since its normal distribution , then the formula to calculate the z-score is given by :-

For x= 28.2 hours

For x= 30 hours

The P- value = 

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775
Answer:
-1
Step-by-step explanation:
-3x(-5)-16
15-16
-1